Apparatus for purifying water



(No Model.) 2 SheetsSheet 1.

G. F. LIDY. APPARATUS FOR PURIFYING WATER.

' No. 593,054. Patented Nov. 2, 1897.

2 Sheets-Sheet '2.

(No Moria) G. F. LIDY. APPARATUS FORIURIFYING WATER. No. 593,054. Patented Nov. 2, 1897.

UNITED STATES PATENT rrrcE.

GEORGE E. LIDY, OF CHICAGO, ILLINOIS.

APPARATUS FOR PURIFYING WATER.

SPECIFICATION forming part of Letters Patent No 593,054, dated November 2, 1897.

Application filed September 23, 1896. Serial No. 606,722. (No model.)

To all whom it may concern.-

Be it known that I, GEORGE F. LIDY, a citizen of the United States, residing at Chicago, Illinois, have invented certain new and useful Improvements in Apparatus for Purifying Water, of which the following is a specification.

The object of my invention is to purify water, so as to free it from all impurities and extraneous matter and thus make it more suitable for the manufacture of ice and other purposes; and my invention consists inthe features, combinations, and details of construction hereinafter described and claimed.

In the drawings, Figure 1 is a vertical sectional elevation of anapparatus by which I embody or carry out my process, and Fig. 2 a plan diagram showing the arrangement and connection of the parts.

In carrying out my process for purifying water I arrange a number of tanks 1, 2, and

3, of a size to afford the desired capacity,'

preferably in line with each other, as shown in Fig. 2. These tanks maybe made of boiler metal or of other suitable material for the purpose. I arrange in each of the purifyingtanks two vertical headers A and B, provided with coils of pipe 1), connecting one with the other, as shown in Fig. 2. These connectingcoils may be arranged as close together and in as large number as desired. A pipe leads from the header B in tank 1 to the header A in tank 2 and from the header B in tank 2 to the header A in tank 3, so as to afford communication between the different tanks. From the header B in tank 3 a pipe leads to a steam-condenser C. An exhaust-steam inlet-pipe D admits exhaust-steam into the header A of tank 1, whence it passes around through the pipes b and into the header B, whence it passes on tothe header A in tank 2, where it again passes through the pipes Z) into the header l3 and passes on to header A in tank 3, and so on to the end of the series, where more than three tanks are used, from which end tank the exhaust-steam that remains passes on to the condenser-tank C to be condensed. A water-inlet pipe E admits a stream of water into a series of pipes c in the condensentank, so that a stream of cold water may flow through such pipes and pass off through a pipe e to a waste or other place of deposit. The exhaust-steam which is condensed in the tank 0 passes through a pipe E, which has connecting-pipes c with each of the headers B in the purifying -tanks. This permits not only the condensation in the tank 0, but also allows the condensation in the headers B, to pass off to a place of deposit, where it may be again returned to the boilers and used for the generation of steam.

In order to permit the water to be purified, I employ a pipe F, which has connections with a proper source of supply and which terminates, preferably,in a perforated portion in the last of the series of purifying-tanks, which in the system shown in the drawings is tank 3. This permits the water to flow into the tanks and fill the spaces or interstices in such tanks between the coils of pipes connecting the headers A and B. A float-valve f is arranged in this tank to regulate the supply of water needed. The top of tank 3 terminates, preferably, in serrations or notches, as shown, and is provided with a flaring top a, which rises above the notches or serrations, so that such water as overflows is carried off through a waste-pipe a. The last tank of the series or tank 3 is connected with the next one or tank 2 by a bent pipe G, which rises to a point as high as the tank and then enters the next or tank 2 near its bottom, terminating, preferably, in a portion provided with holes or orifices, as in the case of the inlet-pipe in tank 3. This admits a supply of water to the tank 2 when the tank 3 has become filled. Tank 2 in turn is connected with the first of the series or tank 1 by a pipe G, which, however, need not be provided with holes or perforations, although they may be employed, if desired.

In order to still further heat the water and insure its more perfect purification, I may in some cases employ a coil of pipe II, which I have shown in one of the purifyingtanks. Live steam is preferably admitted into this coil, and near its bottom is arranged avalve h, by which the condensation of this steam is permitted to escape as desired into the exhaust or discharge pipe E. The bottoms of the various purifying tanks are provided with settling-chambers I, into which the sediment and solid impurities may settle and be drawn off through a pipe .I to a waste or other and connected,-as in the case of the others;

the steam and gases being generated by greater heat in the steam will in most eases pass off without any mechanical assistance.

I have-shown three purifying-tanks 'inmy drawings and have described them in any specification, as shown. ever, "to confine myself to ithree tanksor any; 'other specific number, so :long as :I employ-a =senies-two .01 more.

I'do not Wish, ;hOW

lnoperationthe waterto be purifiedeuters the last of 2a series of puri-fying-tan-ks,sand v the eXhaust-steam by which'it iszto be heated and purified enters'at-the first'of suc'hseries. i

Ihus water of the lowest temperature Will rbe'broughtcfirst into contact with pipes containing exhaust-steam of the lowest itemperature and will in each succeeding :stage be;

=brought into contactwith :pipes containing;

steam ofiincreasin g te1nperature,so that-atithe end of the operation the water at its highest. temperatureand the steam at its highest temperature will be in the same vtank, and

the 'water as it leaves the .end 3p unifying-tank is in its conditionof greatest purity.

Theiadvantages of my'app'aratus over oth- 5 ers in use-in, for instance, thermanufacture of eiceare'that there is'a large'sa-uing-inrthe;

steam-capacity employed at'the .ice plant, in-f :a-smuch as the-water employed inzthe manufac- 'ture'of the-ice does not haveto be evaporated iand condensed, as is now :the case,in tha t'the :steam used in the running of the ice plant isartilized to purify the water employed in;

the manufacture'of the ice,-and in that the; Water arising from the condensation of the; steam thathas been already used-for the 'running of the ice plant machinery may again be returned to the boilers and used over and over again, so that there is a large saving effected in the quantity of water used in the manufacture of the ice, which is often of great importance, which condensed water being returned to the boilers clean and free from sediment does not foul the boilers and dispenses with the frequent cleaning that is now required.

What I regard as new, and desire to secure by Letters Patent, .is-

1. In an apparatus for purifying water, the

combination of a-series of purifying-tanks, headers arranged in such tanks, pipes connecting the headers in-each of the tanks, an

inlet-pipefor supplying eXhaust-steam'to one of the headers :init'he firstrof theseries of purifying tanks and through :the connecting pipes :totheother sheader, a pipe connecting the :header into which the eXhaust-steam'is admitted through the connecting-pipes with one of :the headers in the next purifyingtank, and soon throughout :the series "of purifying tanks,' and means ifor introducing 'Water into the last of the series of purifyingtanks and :fromeeach to the next.

'2. in an:apparatusfor'purifying water, the combination of a series of purifying-tanks, headers :arranged in such tanks, pipes connecting 13118 :headers in-each of the tanks, an Einlet-pipe-forsupplying eXhaust-steanrto one -'of 'the :headers in the first of the series 'of apurifying-tanks and through the connecting- ;pipes to :the other header, 'a :pipe connecting I the header into which the exhaust-steam is admitted through the connecting-pipes with =one of :the headers in the next purifying- :tank, and so onsthroughout the series ofzpu-rifying -tanks, :means for introducing Water into the =1ast of :theseries of purifying-tanks .and from each to the DGXQEQHG. means for drawing off :gases 'and Vapors generated in the pu rifying+tanks.

GEORGE in. LIDY. WVitnesses:

THOMAS A. BA'NNING, ANNIE 0.:O0URTENAY. 

